The actual presidential primary is a mere beauty contest - voters actually vote for delegates in each congressional district who are pledged to each candidate. See the link:
http://www.philly.com/inquirer...
Across the state, the Clinton campaign failed to file complete slates of delegates, and, as a result, came up short by 10 or 11 delegates statewide. Essentially, the Clinton campaign ceded 10% of the delegates to the Obama campaign that are up for grabs on primary day.
Oops!
http://campaignspot.nationalre...
http://www.attytood.com/2008/0...
Update by Flipper:
http://www.post-gazette.com/pg...
Think about Virginia for a minute. We elected state delegates in our primary, and the application process for those delegates is just starting now. Those state delegates will elect our national delegates in May and June. Nobody was filed before the primary, yet everybody is pledged.
In Pennsylvania, in addition to the names of the presidential candidates, the actual names of the delegates pledged to each candidate are also on the ballot in each. The popular votes does not designate delegates, the delegates are elected on their own.
So having said that, Clinton has 2 delegates she failed to file in Philadelphia. So if this occurred in one CD and the CD has had 4 delegates allocated to it, Obama will pick up two off the bat.